meaning of fatigue
1. Weariness from bodily labor or mental exertion; lassitude or exhaustion of strength.
2. The cause of weariness; labor; toil; as, the fatigues of war.
3. The weakening of a metal when subjected to repeated vibrations or strains.
4. To weary with labor or any bodily or mental exertion; to harass with toil; to exhaust the strength or endurance of; to tire.